Information security chip for Internet of Things

Abstract

The invention discloses an information security chip of the Internet of Things. The chip comprises a central processor, a dynamic memory, a flash memory, an SM2 encryption algorithm unit, an SM3 encryption algorithm unit, an SM4 encryption algorithm unit, an AES encryption algorithm unit, a true random number generator, a physical unclonable function circuit, an I2C interface, a UART interface, anSPI interface, an I / O interface, a JTAG interface and a timer which are interconnected through an on-chip bus. The true random number generator is used for generating true random numbers; The physical unclonable function circuit is used for chip authentication and key generation, when a key needs to be used, a true random number generated by the true random number generator is input into the physical unclonable function circuit through an on-chip bus, the physical unclonable function circuit outputs a unique response sequence, and the response sequence is the key. The encryption and decryption operation speed is high, the hardware resource consumption is low, the power consumption is low, the secret key cannot be copied and stolen, and the security and anti-counterfeiting level is high.

Description

technical field [0001] The invention relates to the field of information security, in particular to an information security chip for the Internet of Things. Background technique [0002] Today is the era of rapid development of information technology, the Internet is rapidly becoming the carrier of all walks of life, promoting the progress of the industry, and the Internet of Things, as the basic medium and pioneer of Internet applications, greatly improves the efficiency of industry production and people's lives. Its application is called the third wave of the development of the world's information industry after computers and the Internet. At the same time, the security issue of the Internet of Things has also attracted people's attention. [0003] In order to ensure information security, the State Cryptography Administration of my country proposed the SM2 elliptic curve public key cryptography algorithm, the SM3 cryptographic hash algorithm and the SM4 block cipher algor...

AI Technical Summary

Problems solved by technology

However, some products in the current market use software encryption, resulting in slow data encryption and long cycle times. At the same time, some products are encrypted entirely by hardware. Although the speed is fast, the chip area is large and the power consumption is high, which cannot meet the requirements Low Power Requirements for Networked Products

At the same time, almost most of the products on the market store the key in non-volatile memory, which is vulnerable to intrusive attacks, resulting in the key being copied and stolen

These problems seriously restrict the popularization and development of the Internet of Things, and bring great security risks to the products of the Internet of Things.

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